Prospects for thermonuclear ignition in a ''collisional'' tokamak

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The parameters are described for a tokamak reactor plasma that attains ignition in the same regime of collisionality as present-day ohmic-heated tokamak plasmas, where the confinement scaling ntau$alpha$n$sup 2$ is observed. The use of Nb$sub 3$Sn toroidal field coils and a plasma elongation greater than or equal to 1.5 are necessary to attain the high plasma density (n approximately 10$sup 15$ cm$sup -3$) required for ignition in this collisional regime. Under these conditions, the fusion power density is of order 10 W/cm$sup 3$. This high value is probably necessary for an economic tokamak reactor. (auth)

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Pages: 15

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Cohn, D.R.; Jassby, D.L. & Parker, R.R. October 1, 1975.

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Description

The parameters are described for a tokamak reactor plasma that attains ignition in the same regime of collisionality as present-day ohmic-heated tokamak plasmas, where the confinement scaling ntau$alpha$n$sup 2$ is observed. The use of Nb$sub 3$Sn toroidal field coils and a plasma elongation greater than or equal to 1.5 are necessary to attain the high plasma density (n approximately 10$sup 15$ cm$sup -3$) required for ignition in this collisional regime. Under these conditions, the fusion power density is of order 10 W/cm$sup 3$. This high value is probably necessary for an economic tokamak reactor. (auth)

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Pages: 15

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Dep. NTIS

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  • Other Information: Orig. Receipt Date: 30-JUN-76

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  • Report No.: MATT--1170
  • Grant Number: AT(11-1)-3073
  • DOI: 10.2172/4165600 | External Link
  • Office of Scientific & Technical Information Report Number: 4165600
  • Archival Resource Key: ark:/67531/metadc867033

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  • October 1, 1975

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  • Sept. 16, 2016, 12:32 a.m.

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  • Oct. 27, 2016, 7:40 p.m.

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Cohn, D.R.; Jassby, D.L. & Parker, R.R. Prospects for thermonuclear ignition in a ''collisional'' tokamak, report, October 1, 1975; New Jersey. (digital.library.unt.edu/ark:/67531/metadc867033/: accessed August 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.